/*
 * Copyright (C) 2009 The Android Open Source Project
 *
 * Licensed under the Apache License, Version 2.0 (the "License");
 * you may not use this file except in compliance with the License.
 * You may obtain a copy of the License at
 *
 *      http://www.apache.org/licenses/LICENSE-2.0
 *
 * Unless required by applicable law or agreed to in writing, software
 * distributed under the License is distributed on an "AS IS" BASIS,
 * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
 * See the License for the specific language governing permissions and
 * limitations under the License.
 */

#include "sync.h"
#include <assert.h>
#include <string.h>

#ifdef ___SYNC_ENABLED___

namespace ime_pinyin
{

	Sync::Sync()
		: userdict_(NULL),
          dictfile_(NULL),
		  last_count_(0)
	{
	};

	Sync::~Sync()
	{
	}


	bool Sync::begin(const char *filename)
	{
		if (userdict_) {
			finish();
		}

		if (!filename) {
			return false;
		}

		dictfile_ = strdup(filename);
		if (!dictfile_) {
			return false;
		}

		userdict_ = new UserDict();
		if (!userdict_) {
			free(dictfile_);
			dictfile_ = NULL;
			return false;
		}

        if (userdict_->load_dict(QString(dictfile_), kUserDictIdStart,
		                         kUserDictIdEnd) == false) {
			delete userdict_;
			userdict_ = NULL;
			free(dictfile_);
			dictfile_ = NULL;
			return false;
		}

		userdict_->set_limit(kUserDictMaxLemmaCount, kUserDictMaxLemmaSize, kUserDictRatio);

		return true;
	}

	int Sync::put_lemmas(char16 *lemmas, int len)
	{
		return userdict_->put_lemmas_no_sync_from_utf16le_string(lemmas, len);
	}

	int Sync::get_lemmas(char16 *str, int size)
	{
		return userdict_->get_sync_lemmas_in_utf16le_string_from_beginning(str, size, &last_count_);
	}

	int Sync::get_last_got_count()
	{
		return last_count_;
	}

	int Sync::get_total_count()
	{
		return userdict_->get_sync_count();
	}

	void Sync::clear_last_got()
	{
		if (last_count_ < 0) {
			return;
		}
		userdict_->clear_sync_lemmas(0, last_count_);
		last_count_ = 0;
	}

	void Sync::finish()
	{
		if (userdict_) {
			userdict_->close_dict();
			delete userdict_;
			userdict_ = NULL;
			free(dictfile_);
			dictfile_ = NULL;
			last_count_ = 0;
		}
	}

	int Sync::get_capacity()
	{
		UserDict::UserDictStat stat;
		userdict_->state(&stat);
		return stat.limit_lemma_count - stat.lemma_count;
	}

}
#endif
